Places a bomb on any unit, allied or enemy, which detonates after 4 seconds, dealing area of effect damage.
Zilean places a time-delayed bomb on a target. After 4 seconds this bomb will detonate, dealing 100/155/210/270/330 (+0.9) magic damage to all surrounding enemies.

Cost
60/75/90/105/120 Mana
Range
700

***Comments/Opinion*** This is a great early game harassment on squishies , but not so viable on tanks.Rather than placing bombs on enemy champion tanks , place them near enemy minions or your minions , to damage them and the enemy tank champion.It's best to max this skill out earliest.Late game , it's damage is still quite good on carries and mages , but it doesn't hurt to place them on tanks too.

Rewind

Zilean can prepare himself for future confrontations, reducing the cooldowns of all of his other abilities.
Reduces all of Zilean's other spell cooldowns by 10 seconds.

Cost
50/50/50/50/50 Mana
Range
600

***Comments/Opinions*** A great skill to reduce all of your skills cooldowns , including this skill.At max level , with 40% CD reduction , it take's 3,6 seconds to refresh it.This means , almost all of your skills (excluding Chrono Shift) will be available every 3,6 seconds.I suggest to max this skill out after Time Bomb.At early game , use it to harass enemy champions , by TRT'ing ( TimeBomB-Rewind-TimeBomb )them , but don't use it all the time.This will drain your mana pretty quickly , so wait till late game , to spam it like never before.

Time Warp

Zilean bends time around any unit, decreasing an enemies movement speed or increasing an allied units movement speed for a short time.
Zilean slows an enemy champion's movement speed or increases an allied champion's movement speed by 55% for 2.5/3.25/4/4.75/5.5 seconds.

Cost
100/100/100/100/100 Mana
Range
700

***Comments/Opinions*** This is your bread and butter skill.I can not imagine , how many times we have scored a kill , just because of slowing an enemy.Always use it , after the champion starts to flee or a stun ends on it (never use it the same time it is stunned) and I guarantee it will surely die.Although I praised this skill very highly , it's best to max it out after Rewind.Early game , you won't be using it so many times , besides harass - > jumping on the enemy -> slow - > die.It's better to pack a punch with time bombs and slow the enemy for few secs while he is escaping , to let your team mate finish it.

Chrono Shift

Zilean places a protective time rune on an allied champion, teleporting the champion back in time if he takes lethal damage.
Marks the target with a protective time rune for 15 seconds. If the target would take lethal damage, they are instead transported back in time regaining 500/750/1000 (+3) of their health.

Cost
200/200/200 Mana
Range
900

***Comments/Opinions*** This is what makes all the enemy teams cry.This is what makes all the team fights begin 6v5.This is what makes your team mates love you.Ladies and gentlemen , I present you a Chrono Shift spell!When engaging in a team fight , always drop it on the most focused person , like a carry or a tank.It depends on how they're health is hanging on and you need to remember that there's a timer before this revive buff ends.It's also a good option to see if one of your team mates in a lane are doing bad , give them an order to attack the enemy and show yourself with Flash , put revive on and slow the enemy and finish it off.This has happened a lot of times in mid game and all the time I received "thanks!".It's not a good idea to max this ultimate fast , because the only bonus it gains is health , when you get resurrected.Additional health , won't help it , if you die instantly again.

*/Thoughts on the passive\*

8% more exp is not so bad , but it doesn't really add a huge effect.Although if your very good at last hitting , you will always be one level ahead against your lanes , which is good.At level 3 you are able to TRT and slow your opponent , which can make a huge difference.

SUMMONER SPELLS

Clarity + Flash is the combo I always use.I also picked in utility tree Clarity talent , so I can help out my lane partner , if he has mana.I mostly pop Clarity spell very early to get it back on rolling ASAP.I usually stay in my lane till level 10 , get myself Archangel's staff and Mobility boots.Flash is used , either to escape or teleport and land the last bomb combo , to finish your enemy up.

///OTHER SPELLS///

Avoid using spells like - Fortify/Heal/Teleport/Exhaust.Ghost/Flash , Ignite/Flash , Cleanse/Flash are also not bad options , though the most favorable I'd go , would be Ghost/Flash.Popping Time Warp/Ghost/Mobility boots , get you at 600~ Movement speed.This makes a really fast appearance to your ally's ping help.

Early Game :

Start with Sapphire Crystal + x2 Health Potions.It's usually best to lane with someone who can stun or taunt the target , adding your Time Warp slow and finishing off a target with Time Bomb - > Rewind -> Time Bomb combo attack.Always harass opponents dropping bombs on them or placing on your minions which are about to die ( works on melees or mentally diseased people).Your pretty much slow at the beginning , but it's a good idea after some kill supports or kills to Recall to base and buy yourself Boots + Tear of Goddess.

Mid Game: This is where Zilean shines.Going into teamfights , putting revive on carries or another person who is about to die , turning a fight into a hell hole.Use your time warps very effectively , which allows your team to slay running targets.Your Time Bombs pack pretty much a big punch , so don't hesitate to use them.If your team doesn't have junglers or not thinking of getting buffs , it's always a good idea to get Blue Buff for yourself , which will grant infinite skill usage and total Rewind spam.

Late Game: This is where you put something heavy on W key and spam rewind like hell.Having rough 40% CD reduction and almost infinete time warp spam ALWAYS , makes a really great support character.If you were doing well and got yourself Zhonyas Ring , bind the key so you can use it immediatelly after getting targeted by people (this usually happens to me , other team is frustrated seeing me , so I have a lot of aggro :) )

Tips :

* If you see a team mate getting killed , try to use Ghost + Time Warp (Mobility Boots speed bonus) and rush there fast , using revive spell and slowing the enemy , making this fight into your team's favor.
*Never target with revive spell people clicking on they're models.Try to remember your team's portrait layout , so you can smart - click on them and not worry missing the click in the game.
*Have a good map awareness and always communicate with your team.Zilean is heavy team dependent , so it's best to go queing with a friend or two , so you can coordinate your spells.
*If the game is taking long , buy yourself Guardian Angel and upgrade Soul Shroud to Frozen Heart.If the team is caster heavy , get Banshee's Veil.